The Sertapedic® mattress collection is designed to offer the quality you expect from the Serta brand at exceptional values. Sertapedic features our SertaFlex™ Innerspring, uses an offset coil design to ensure maximum flexibility and responsiveness to the contours of your body while you sleep. It has an increased surface coverage compared to other value-priced innersprings, helping to provide enhanced conformability, comfort and support.